| Termen/ Term | Nr. apariții/ No. occurrences |
| CUBITUS STING | 1 |
| CUBOID | 1 |
| CUC | 21 |
| CUCURUZ DE MUNTE | 1 |
| CUCUTA | 3 |
| CUCUTA DE PADURE | 1 |
| CUCUVEA | 51 |
| CUDU MARE | 1 |
| CUFUNDAC | 1 |
| CUFUNDAC GUSA-ROSIE | 1 |
| CUFUNDAC POLAR | 10 |
| CUFUNDAR | 2 |
| CUFUNDAR GUSA ROSIE | 3 |
| CUFUNDAR GUSA-ROSIE | 1 |
| CUFUNDAR MARE | 1 |
| CUFUNDAR POLAR | 4 |
| CUIBOTICA CUCULUI | 1 |
| CUISOARE | 1 |
| CUISORITA | 10 |
| CUJDA | 4 |
| CUJMAREA DE MUNTE | 1 |
| CULBECEASA | 4 |
| CULBECEASA RIGIDA | 1 |
| CULIC | 2 |
| CULIC CIOC SUBTIRE | 1 |
| CULIC MARE | 7 |
| CULIC MIC | 2 |
| CUNUNITA | 1 |
| CUPA | 13 |
| CUPA OII | 2 |
| CUPA VACII | 5 |
| CUPE | 3 |
| CUPE MARI | 1 |
| CURCAN | 1 |
| CURPEN | 5 |
| CURPEN DE MUNTE | 3 |
| CURPEN DE PADURE | 1 |
| DALAC | 2 |
| DALIE | 1 |
| DAMAN | 1 |
| DEDITEI | 14 |
| DEFENSA | 2 |
| DEGETAR | 5 |
| DEGETAR GALBEN | 1 |
| DEGETARUT | 1 |
| DEGETARUT DE BRADET | 1 |
| DEGETARUT DE ZAPADA | 1 |
| DEGETARUTI | 3 |
| DEGETEL ROSU | 2 |
| DELFIN | 1 |